Hand transit



I. E. DICK.

HAND TRANSIT.

APPLICATION FILED MAY 23| |918.

1,308,050. Patented July 1, 1919..

2 SHEETS-SHEET I.

INVENTOR J. E. DICK @PMM ATTORNEY .aan man UNITED STATES OFFICE Y, l l l JnMEsniDICKtoFDENvR,contamina p i i i i i i i i 15 i o il m :if` 1i 1,303,050. p specification of Letters Patent.y i Patented July 1., 1919.

` i lahpafaeditada 191e Seial@ essere zen of theUnited Statesigresidiiig my, in the county of Denver and State"`o`fC"volo rado,` have nvented leertainjnew and useful mary object is to provide a portable Sliive f-" i l which ing instrument of ifery""i1npleoonsti ibiil l i :M1 li 1` 1 1` i W1" which 1s adapted t inea re both horizontal and Vertical "aiiglelwltjlioiitf the leveling means or a et jy sl The instrulne'nt is partienlgarly p to loe heldin the handolf tlie StufVeyorl and it is designed tojacdnrateljl" ineaaiiie any p horizontal angle and any l" Vertical angle Within a range su'lieiently" ifdefto `adaptfthe` instrnnentfor nseaean le'I'lLieientuhilfst 'A forthefordinary tranit.l o Withfthe albove" and other olijeets `1Il` vi all oli' Whieh Will fully appear` in` theveo rse of `the following desoriptionj, ii'yWiifeiition consists of tllefeatures of1oons`truotion and combinations of parte,` embodiment "of Whihhas been shown" theA aceeinpanying drawings` in which like eliaraotere of Erefer` encedesignate `Corresponding parts throiiglil out the several Views, and in which l" Figure lI repreeente` a partially Sectional plan View of the inStrlilnent/5V `A Fig. 2, a section taken on tlielline Figl, l l Fig-3, a section onl the line Fig. l, Fig. 1et, a horizontalfseetionalong the line H, Fig. 2, and f f F 5', a face viewof one" oflthllsoale plates loearing the graduated vertical along `which the "Vertioal angles" l'aref measured,'taken on the line' 5-`5` Fig. 2. j `Referring tothe drawings, the `rei'eremoeV eharaoter 2 designates: `a ooinpass-fboxof suitable proportions` which inthe center 'of ite top has a circular opening covered by a plate of glass 3. p p p A horizontal partition Llp ving a oireir lar opening axially" alined With that in the top of` thefbox; provides| a `framefor aldial 5 which when the 'Boli` occupies horizontal positioirlies in the plane "ofthe tippersury fanelthereof. f V

11 Il* he dialf'haefaentral bank` o will elle@ y cammeo# with@ yoke? which is 55 Lj amil-,Send in bearings eg an op-` eSof tliefliox, to Swing abolita inl-12011 ilexijs. a l HThe kelhas "alpassage"tolreceire thefshanl;` tithe di@ hih is snppolted "o11` 50 ',fllle` "several Weights Vioperate l "Coni` Stantly maintain tlleidial in horizontal p Sai 1; i1-reef neeffie jeitinyoffthe bek; itllibeihigl uiic erstoodl that the" e1`1pp`rtin`g`75 ineanswhereby thedial is enali ed t erring ahoiit tiro aiiee eztendin at right "anglee to eaeh other; pi'ovidea L irerealjoint "W lliohf permits off angnlariinotion Tof the box in any direction Witliontfdietiirbilig thepoitioi of ai@ diaiwah reglamentaneilovrizonmi. 1 1 t n maglieria 1 needle 13 which ebpera'tls with a graduated circle `on the margin o 'tlie dialf iS loosely` enppo Upon "point 14k which extend in thefaXis of the dial from 35 afeniallklisl; 15` no'rx'nally restingupoii the uppersnijaoeof thesarne. x p l (Slender rodl 1 1G on" tlie" "disk ieXten'de l-ooeely through a longitudinal bore uof the shanland projeetebeyond the lower surface of lits; Weighted end,` andfajfsliorter rod `or pint 1'1" extending in a lbore `of f the elia/nk, parallel tothe' other, pseoies 'the disk again which extends Vinwardly from a side of the box, carries at the end of one of its arms a- Y with the superposed stop and the frictio-nal i rod Q4 which projects through a slot Vin the socket, into an aperture .ofthefoot of the rIhe opposite arm of the bell-eranlris pivotally' connected with a push-rod 25 which extends loosely through an openingV in the top-plate of the box.

The bottom surface of the Weight on the shank of thedial is convex in conformity with the` inner conca-ve surface of the cup 19 which is normally spaced therefrom.

When in the operation of the instrument it is desired to clamp the dial and its rotary contact Vbetween the cup and bottom surface of the Weight lOcauses both the dial and the'needle to be fixed in the positions they occupy with relation to each other and the 'compass-box,

The graduated vertical arcshereinbefore referred to` areplaced upon the inner surfaces of twoplates 2(5whieh are fastened at points'diametrically opposite Iwith relation 4to themaxis of the dial, to the upwardly extending end-portions 27V of the oscillating yoke 7.

The jdial has marginal. pointers 28 which coperate with the scales on the plates 26 to Aindicate the vertical angles, and the faces Yofthe plates are curved in lthe circle of the movement of thedial about its axis on the yoke.

It will be seen that by the above-de scribed arrangement onthe vertical scaleplates and the dial,.the pointers of the. latter will always `move in proper relation to the scales irrespective of the position. of the box relative to fthe lconstantly horizontal parts of lthe instrument.

Two cooperative sight-posts 29 extend upwardly kfrom opposite sides of the compassbox at the ends of an imaginery line passing through the axis of the dial.

The Vposts are connected with the box by hinge-joints30 andare each composed o-f two hinged sectionsl and 82 so that they may be folded upon the top of the box when not in use.

The posts are provided with longitudinal sight-slots 33 and with notch-sights 34 which are vertically alined with the .respective Slots, in the upper edges of the same.

The lower edges 35 of the slots are airanged with relation tothe sights 34: so that a line drawn from the sight of either post through the edge 35 of the slot in the other post extends at a predetermined angle to the sight-line of the instrument passing through the notch-sights.

The purpose of this arrangement is to provide a simple and ready means for augmenting the angle measured on one or the other of the vertical arcs, by an angle of predetermined value and thereby increase the range of the instrument in its use as a gradienter.

In the operation of my improved instrument, the operator holding the box, sights at a distant object along the notchgsights 34. The position of the magnetic needle relative to the graduated circle on the dial denotes the horizontal angle between' the sight-line passing through the object and a. preses tablished line, and theV position of one of the pointers 28 on the dial relative to the corresponding vertical arc denotes the elevation of theobject with relation to the point of observation, by measuring the degree of inclination oi" the imaginary line passing through the sights of the instrument and the object, as compared with the horizontal.

In casel the angle of inclination exceeds i the maximum of either vertical scale, the operator sights at the object along a line passing through the sight of t-he near sight-post of the instrument and the end of the slot in the far sight-post, and adds to the known angle between this line and the sight line ot the instrument, the angle measured on the vertical scale, it being understood that in every position of the instrument, the floating dial and its magnetic needle remain constantly in a horizontal position.

As soon as the operators line of vision intersects the distant object7 and' the needle comes to rest, the push-rod is pressed inwardly to lock the operative parts ot the instrument against relative movement.

Aith the parts in this condition. the operator can readily read the measured angles through the glass-covered opening oit the box.

Havingthus described the instrument in the best form at present known to me, I dcsire it understood that variations in the construction and arrangement of the coopera tive parts thereof may be resorted to within the spirit of the invention as set forth in the following claims:

l. In an instrument of the character described, the combination with a support and means thereon for sighting along` a dcterminate line, of apivoted dial balanced on the support `to maintain a horizontal posi tion7 a magnetic needle cooperating there with, a `vertical scale on the support. for measuring the angular position of the sightllU line relative to the horizontal, and a pointer on the dial coperating with the scale.

2. In an instrument of the character de-` scribed, a support, sight-members thereon es-` tablishing a determinate line of sight, a verti-` cal scale on the su port for measurin the angular position ot the sight-line re ative to the horizontal, and a pivoted pointer cooperating with the scale and balanced to maintain a horizontal position, one of the sight-members having an auxiliary sight disposed to establish in conjunction with the other member; a second sight-line at an angle of determinate value.

3. In an instrument of the character described, a support, sight-members thereon establishing a determinate line of sight, a vertical scale on the support for measuring the angular position of the sight line relative to the horizontal, a universally pivoted dial on the support, a magnetic needle coperat ing therewith, and a pointer on the dial cooperating with the vertical scale one of the 'gilt-members having an auxiliary sight disposed to establish in conjunction with the other member, a second sightline at a verti-` cal angle of determinate value.

4. In an instrument of the character described, the combination with a support and means thereon for sighting along a determinate line, of a universally pivoted dial on the support, a magnetic needle coperating therewith, and mechanism for ixing the dial and the needle with relation to the sight-line.

5. A hand-transit comprising a compassbox, coperating sights thereon, a yoke suspended in the box to swing about a deter` minate axis, a `dial pivoted on the yoke to swing about an axis at right angles to the other and balanced to maintain a horizontal position, and a magnetic needle coperating with the dial.

6. A hand-transit comprising a compassbox, cooperating sights thereon, a yoke suspended in the box to swing about a determinate axis, a dial pivoted on the yoke to swing about an axis at right angles to the other and balanced to maintain a horizon-tal position, a magnetic needle coperating with the dial, a vertical scale fixed on the yoke to measure the angular position ofthe sight line of the transit relative to the horizontal, and a pointer on the dial cooperating with the scale.

7. A hand-transit comprising a compassbox, cooperating sights thereon, a yoke suspended in the box to swing about a determinate axis, a dial having a weighted shank pivoted on the yoke to swing about an axis at right angles to the other, a needle-support havin@ a rod extending beyond the lower end or the shank, a magnetic needle on the support, a stop above the needle, a clamping member coperating with the stop to ix the dial and the needle with relation to the box by engagement with the lower ends of the rodfand the shank, and means to effect an adjustment of the clamping-member. j

8. A hand-transit comprising a compassbox, coperating sights thereon, a yoke suspended in the box to swing about a determinate axis, a dial having a weighted shank pivoted on the yoke to swing about an axis at right angles to the other, a magnetic needle supported above the dial, a stop above the needle, a clampin member coperating with the stop to fix te dial and the needle with relation to the box, and means to elfect an adjustment of the clamping member.

9. A hand-transit comprisingin combination with a suitable support, two sight-posts having sights to establish a determinate line of sight, a vertical scale to measure the angular position oi the sight-line relative to the horizontal, and a pivoted pointer coperating with the scale and balanced to main tain a horizontal position, one of the sight- `posts having a second sight dlsposed to esof sight, a vertical scale to measure the angular position of the sight-line relative to j the horizontal, a universally pivoted dial, a

magnetic needle coperating,therewith, and a po-inter on the dial coperating with the scale, one of the sight-posts having a second sight disposed to establish in conjunction with the sight of the other post, a second sight-line at an angle of determinate value, to the other.

11, An instrument of the character described comprising a movable compass-box,

`means thereon for sighting along a determinate line, a universally pivoted dial in the box and a magnetic needle coperative with the dial.

Intestimony whereof I have aixed my signature.

JAMES E. DICK.

Copies of this patent may be obtained for five cents each, by addressing the Commissioner of Patents, Washington, D. C. 

